Shaping device and shaping method for roller electrode for seam welding

a technology of shaping device and roller electrode, which is applied in the direction of roller electrodes, electrode maintenance, manufacturing tools, etc., can solve the problems of large weight of large electrode motor, large robot acquisition cost and robot operation cost, etc., to achieve desired cutting performance, reduce the load of the robot, and simplify the shaping device significantly

Active Publication Date: 2018-01-18
HONDA MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The invention provides a shaping device for the roller electrode used in seam welding, which is separate from the robot and avoids the need for a heavy motor. The device uses a roller drive source to generate counter-cutting resistance torque that reduces the load on the robot. Additionally, the invention includes first and second holding mechanisms that hold the outer circumference of the roller electrodes, ensuring the cutting tools are oriented towards the rotation centers and achieve the desired cutting performance. The technical effect is improved efficiency and performance in seam welding with reduced stress on the robot.

Problems solved by technology

The large electrode motor is heavy.
Consequently, the robot 101 becomes heavy and large, and the robot acquisition cost and the robot operation cost for the robot become large.

Method used

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  • Shaping device and shaping method for roller electrode for seam welding
  • Shaping device and shaping method for roller electrode for seam welding
  • Shaping device and shaping method for roller electrode for seam welding

Examples

Experimental program
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embodiment

[0063]As shown in FIG. 1, a shaping device 10 for roller electrode for seam welding includes a machine frame 11 fixed to a base or a structure, a first roller 12 and a second roller 13 attached rotatably to a central part of the machine frame 11, two vertical rails 14, 14 provided on a front surface of the machine frame 11, a first slider 16 provided on one side (upper side in this example) of the first and second rollers 12, 13 and vertically movably supported by the vertical rails 14, 14, a first holding mechanism 30 provided on a front surface of the first slider 16 for holding the outer circumference of the first roller electrode 17, a feed screw 19 provided at the first slider 16 for feeding a first cutting tool 18 toward the first roller electrode 17, rotation means 21 for rotating the feed screw 19, a second slider 22 provided on the other side (lower side in this example) of the first and second rollers 12, 13 and vertically movably supported by the vertical rails 14, 14, a ...

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Abstract

Provided is a shaping device for a roller electrode for seam welding that prepares shapes for a first roller electrode and a second roller electrode attached to an arm of a robot. This shaping device is provided independently from the robot and disposed within rotational range of the arm, and is provided with a first roller and a second roller that are disposed on a line orthogonal to a line joining the rotational centers of the first and second roller electrodes and are in contact with the outer circumferences of the first and second roller electrodes.

Description

TECHNICAL FIELD[0001]The present invention relates to a shaping technique for roller electrode for seam welding.BACKGROUND ART[0002]A plurality of metal plates are stacked together, and in this state, the metal plates are sandwiched between a pair of roller electrodes. Then, welding current is supplied between these roller electrodes. As a consequence, metal is melted by Joule heat, and a welding bead is generated between the metal plates. By rotating the roller electrode, the resulting welding bead has a linear shape referred to as the “seam”.[0003]In seam welding, the roller electrode is pressed against the metal plate. Then, the roller electrode becomes hot by Joule heat. Due to the pressure and the temperature, wear or plastic deformation of the roller electrode (hereinafter referred to as the “deformation”) proceeds in proportional to the used time and the used frequency. Processing to restore the shape of the roller electrode to its original shape is performed when this deform...

Claims

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Application Information

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Patent Type & AuthorityApplications(United States)
IPC IPC(8): B23K11/30B21B15/00B21B1/16
CPCB23K11/3036B23K11/3063B21B1/16B21B15/0007B21B2015/0021Y10T29/53204
InventorYAMAASHI, KAZUHIKOKODAMA, TETSUYASHIGEMATSU, NORIAKIYOSHIMICHI, HITOSHI
OwnerHONDA MOTOR CO LTD